I knew the ADHD brain filters sound during sleep before the signal reaches the arousal system. I knew that's why three alarms hadn't worked, why the alarm across the room hadn't worked, why me standing in the doorway getting louder hadn't worked. Same category of signal, turned up. Never going to land differently.
I knew vibration takes a different neural path. Skin contact, different system, bypasses the auditory filtering. I'd read enough threads and enough of the actual research summaries to feel confident about the mechanism.
So I was sitting there with my tabs open — three different vibrating wristbands and one of those bed shaker things — comparing them on vibration intensity, battery life, whether the app worked on iOS and Android, price, return policy, whether the band looked too babyish for a 14-year-old who would absolutely refuse to wear something that looked medical.
All of that was real. All of it mattered.
None of it was the thing that was going to change our mornings.